Although you probably want to build BioID in a mobile application, it was expedient for the Gluu engineers to use the laptop webcam to build our demo. The interception script implements a two-step authentication workflow where username/password is step one, and BioID’s biometric authentication is step two. It’s also possible to implement a one step biometric authentication. Gluu has also published a Casa plugin for BioID.
Detailed instructions for how to deploy the Gluu BioID interception script and Casa plugin can be found here
You can find more information about how to use BioID from their documentation: